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3 years ago

13

In a coordinate plane, plot the points and sketch angle. Write the coordinates of a point that lies in the interior of the a

ngle and the coordinates of a point that lies in the exterior of the
angle.
A(-5,0)
B(-1,-4)
C(4,2)

1 answer:

koban [17]3 years ago

7 0

Answer:

A.

Step-by-step explanation:

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1. The temperature measured by a weather balloon is decreasing approximately 3° for each 1000-foot increase in altitude. The bal

Y_Kistochka [10]

Answer:

-17.677686

-11 degrees farenhiet

Step-by-step explanation:

6 0

3 years ago

PLs help with these 2 problems

gavmur [86]

The expressions are simplified to 2x and $\frac{2}{(x+ 1)(x - 1)}$

<h3>How to simply the expressions</h3>

1.

Given the expression;

$\frac{8x^2 - 4x}{4x - 2}$

Let's factorize the numerator;

$\frac{2x( 4x - 2)}{4x - 2}$

Factor the common terms, we have;

2x

2. $\frac{1}{x-1} - \frac{2}{x} + \frac{1}{x + 1}$

Find the Lowest common multiple

$\frac{x(x+ 1) - 2 (x+ 1)(x - 1) + x(x-1)}{x(x-1)(x+ 1)}$

expand the brackets

$\frac{x^2 + x -2(x^2 -x + x -1) + x^2 -x}{x(x-1)(x+ 1)}$

$\frac{x^2+x - 2x^2 -2 + 2x + 2 + x^2 - x}{x(x+1) (x -1)}$

collect like terms

$\frac{2x}{x(x+ 1) (x-1)}$

Divide common terms

$\frac{2}{(x+ 1)(x - 1)}$

Thus, the expressions are simplified to 2x and $\frac{2}{(x+ 1)(x - 1)}$

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7 0

2 years ago

Katyanochek1 [597]

Answer:

The answer to your question is Area = 62.5 u²

Step-by-step explanation:

Area = $c \frac{a + b}{2}$

a and b are bases

c = heigth

dAD = $\sqrt{(x2 - x1)^{2} - (y2 - y1)^{2} }$

dAD = $\sqrt{(-1 + 13)^{2} - (5 + 11)^{2} }$

dAD = $\sqrt{(12)^{2} - (16)^{2} }$

dAD = $\sqrt{144 + 256}$

dAD = $\sqrt{400}$

dAD = 20 u

dBC = $\sqrt{(3 - 0)^{2} - (2 + 2)^{2} }$

dBC = $\sqrt{9 + 16}$

dBC = $\sqrt{25}$

dBC = 5 u

dAB = $\sqrt{(3 + 1)^{2} - (2 - 5)^{2} }$

dAB = $\sqrt{(4)^{2} - (-3)^{2} }$

dAB = $\sqrt{16 + 9}$

dAB = $\sqrt{25}$

dAB = 5u

Area = $5 \frac{20 + 5}{2}$

Area = $5 \frac{25}{2}$

Area = 5(12.5)

Area = 62.5 u²

6 0

4 years ago

Billy has 15$ in his piggy bank, every week he is given an allowance of 5$ should the equation be in slope intercept from or sta

NikAS [45]

Slope intercept

explanation:

total money = 5x+15

x=amount of weeks

7 0

3 years ago

Write an expression for the net change in charge if two electrons are added to each of six atoms in a group. Also, write an expr

dusya [7]

Given:

Two electrons are added to each of six atoms in a group.

To find:

The expression for the net change in charge.

Solution:

Charge of atoms = Number protons - Number of electrons.

Let number of atoms be x.

6 atoms = 2 electrons added

1 atom = $\dfrac{2}{6}$ electrons added

1 atom = $\dfrac{1}{3}$ electrons added

x atoms = $\dfrac{1}{3}x$ electrons added

Therefore, the net change in charge is represented by the expression $-\dfrac{1}{3}x$ because we subtract number of electrons to find atom charge, where, x is the number of atoms.

6 atoms = 2 protons removed

1 atom = $\dfrac{2}{6}$ protons removed

1 atom = $\dfrac{1}{3}$ protons removed

x atoms = $\dfrac{1}{3}x$ protons removed

Therefore, the net change in charge is represented by the expression $-\dfrac{1}{3}x$ , where, x is the number of atoms.

6 0

3 years ago

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